Never operate the meter:

Never operate the meter:

• A. At more than the rated voltage
• B. With the case open
• C. With the cover removed
• D. All of the above

Answer: (D)

Never operate the meter under unsafe conditions. Each of these situations creates a real risk, and together they cover the main reasons for not turning the meter on. Operating at voltages higher than the meter’s rated range can push insulation past its limit, cause arcing, or damage internal components, which can lead to electric shock or fire and ruin the instrument. If the case is open or the cover is removed, you’re exposed to live terminals and internal circuitry, making it easy to touch energized parts or create accidental shorts. The protective enclosure isn’t just for protection; it’s a safety feature that prevents accidental contact with dangerous parts. Because any one of these conditions is hazardous, the safest stance is to avoid using the meter when any of them are present. That’s why the option stating all of the above is the correct choice.

Never operate the meter under unsafe conditions. Each of these situations creates a real risk, and together they cover the main reasons for not turning the meter on.

Operating at voltages higher than the meter’s rated range can push insulation past its limit, cause arcing, or damage internal components, which can lead to electric shock or fire and ruin the instrument. If the case is open or the cover is removed, you’re exposed to live terminals and internal circuitry, making it easy to touch energized parts or create accidental shorts. The protective enclosure isn’t just for protection; it’s a safety feature that prevents accidental contact with dangerous parts. Because any one of these conditions is hazardous, the safest stance is to avoid using the meter when any of them are present. That’s why the option stating all of the above is the correct choice.